Cleaning machine



June 18, 1929. .1. R. MITCHELL CLEANING MACHINE Filed Sept. 23, 192'? gmmmo@ M Wm Patented June 18, 1929.

unirse ys'ra'rns PATENT orifice.

` j L.ioiiii 1i. MITCHELL, or rammen. NEW JERSEY.

CLEANING MACHINE;

Application filed .September 23,1927. Serial No; 221,551..

ily and quickly cleana piece of ware. its stillr further object to provide a machine of this kind in `which there is a rotating shaft l1aving a support on the end thereof adapted to receive a piece of ware and which can be rotated by throwing in a clutch by means of a treadle or other suitable device and in which the rotation ofthe shaft carrying the piece of ware will be caused to cease rotation to permit removal of lone piece of wai'e and the placing of another piece on the shaft.

The present invention is intended primarily for use withthetable disclosed and claimed in my copending application, Serial No. 220,- 818, tiled September 20, 1927.

In the accompanying drawings:

Fig. 1 illustrates in plan my present invention applied to a `table such as that in my former application, only a fragment of the table being shown; l

Fig. 2 is a side elevation of the construction shown in Fig. 1;

Fig. 3 is an enlarged longitudinal section of the upper portion of they cleaning machine, and; n f

Fig. 4 is a detailed sectional view of the clutch construction.

Referring toy the drawings in detail, the numeral 10 indicates a portion of the table arrangement with which the present machine is particularly adapted to be used, this table and the operation of the same being fully disclosed in my said copending application.

The machine of present invention includes a vertically arranged support 11 which may be of any desired form and secured to which are laterally extending brackets 12 and 13, each of which is provided with aligned bearing portions 141. Rotatably mounted in the bearing portions 14 of the bracket 12 is a shaft 15, the upper portion of which is surrounded by a collar 16 and the lowei' portion by a collar 17, each suitably secured to the shaft.

The upper end of the shaft 15 is threaded so as to receive. asuitable head` or ware sup-k port 1S upon which a piece of` porcelain `ware W is` adapted to be placed.` r1t will, ofcourse, be understood that the shape and size of the head or support 18 are.Varied,idepend` i lng upon the nature of the yporcelain ware which is to be placed thereon. In uother words, different heads 18 are used for different:y

kinds of ware.

Thelower endof the shaftl carries a fric# tion disky A provided with anopeningginto which the collar 17 is inserted the latter having a `flange 171 which fits into ya coun terbore in the disk andrthrough which nails or screws17 b may be driven into/the disk.

This'scrvcs to secure the disk to the shaft l5. A pin 19 is secured inthe lower end of the shaft 15 and projects downwardly therefrom.

Arranged below the shaft 15 and in axial alignment therewith is ashaft 20 which isrotatably supported in the bearings 14 of the bracket 13. rllhe shaft 20A is also provided witlicollars, 21, 22,.which are secured to the saine. Thefshaft 2O is driven bymeans of a beltwheel 23 rigidly secured thereto, this wheelv being engagedby a belt 24 passing yaround the saine and around abelt wheel 25 which isdriven b ymeans of a motor 26. The motor 26 is preferably supported onA asuitablepedestal or support 27 iny such position` that the belt wheels, 23 andf25, will be in sulostantially the same horizontal plane. By this means, the shaft 20 is caused to rotate constantly while thefmotor-26 is in operation. Arranged upon thefupper end of the shaft 20 is a friction disk B which is secured thereto in the same manner as above described in connection with the disk A,-that is'the collar 21 extends into an opening in the disk B and flanges 21a`receive nailsorother fastening devices 21b which extend into the disk B. The

upper end of shaft 20 is provided with aiecess to receive the pin 19y on shaft A. By this means any relative later-al movement between theshafts 15 and 20is prevented. The friction disk. B is, of course'7 adapted tobe brought intoengagement with the friction disk ik on theishaft 15. In other words, the two. disks, A and/B, constitute in-eifect a friction clutch.` The contact faces of these fric.-y tionA disks are. preferably supplied with suit-` ablepads() made ofleather or other suitable material.

As before noted, the shaft 20 is axially movable, and such movement is for the purpose of bringing the friction disk Binto contact with the friction disk A. The axial movement ofV the shaft 2O is effectedv by means of a lever 31 pivoted at 32 to the support 11i. g One end of the lever 31 enga-ges beneath the collar 22 on Y the shaft 20, and to the other end thereof is secured a'wireV or cable 38, which extends downwardly to a suitable treadle 34. `From this itl will be apparent that when the treadle 34 is depressed, the shaft 2O will be moved upwardly and the friction disk B raised into contact with'the friction disk A, thus causing rotation of the shaft 15. 9 When pressure on the treadle 3st is released, ythey weight of the partswill cause kthe shaft to move in the opposite direction, thusl separating the fricktion disks A'and B.

It is important thatthe rotation of the shaft 15y be stopped immediately after the clutch disks areseparated, because in a machine ofv this kind, the ware receiving head f must-be stationary `'when the ware is removed therefrom or placed thereon. To' effect such quick Ystopping of the shaft 15, there is provided a brake including a brake pad 36 which is adapted to bear upon the upper surface of the friction disk VA. The brake pad 36 is carried at one end of a lever 37, the other end ,of which; is pivoted at 38 to the support 11. A link 39 connects the intermediate portion of the lever 31 with the intermediateV portion of the lever 37. vIt will therefore be seen that when the lever 31 is raised to bring the friction disks in contact, the brake pad 36 will be lifted from the surface of thefriction disk A.

`Likewise, when the shaft 2O moves down-Y wardly and the friction disks A and B are separated, the brake pad 36 will move into engagement with the friction disk A, thus stopping rotation of the shaft 15.

YIn some cases it may be Vadvantageous to have the shafts 15 and 2O arranged horizontally insteadof vertically, but such modifica- Y tion can obviously be effected without any esi sential change in the mechanism. n

Various minor changes may, of course, be

, made in the construction as above described without departing from the essentials of the invention. i

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is zV 1.V A' machine ofthe class Adescribed comprising a rotatable shaft adapted to carry, a

support for porcelain thereon, a driving shaft, meansVV for rotating the latter, a clutch disk secured to each of said'shafts, means for mov- 1 ing said last namedshaft axially, whereby said clutch disks are broughty into engage-VV ment, a brake associated with said first named shaft and means for rendering said brake inoperative when said clutch disks are engaged and operative when saiddisksare disengaged.

2. A machine of the class described comprising arotatable shaft adapted to carry a support-for porcelain thereon, a rotatable and Y axially movable driving shaft, means for rotating the latter, a clutch disk secured to each of said shafts, alever for moving said driving shaft axially, whereby said clutch disks are kcaused to engage, a brake forY engaging the clutch disk on said first named shaft, to retard rotation thereof, and means operated by said lever for moving' said brake out of ei'igage'- ment with' said last named clutch disk vwhen said driving shaft is moved in the direction to Y cause engagement of saidclutchdisks and for moving said brake into engagement with said last named clutch disk upon reverse movement of said driving shaft. Y

3. -A machine of the class described coinprising a constantly rotating and axially movable driving shaft, having va friction disk secured to one end, a manuallyoperable lever for moving said shaft axially, a driven shaft arranged coaxially with said driving shaft and having a friction disk secured thereto ad- Vjacent said first named disk, whereby said driven shaft is caused to rotate when said first named disk is moved into engagement with the other disk, a brake for said disk'on theV caused to rotate, means carried by `one of said shafts and engaging the other to prevent lateral movement between the same, anda brake for stopping rotation of said rotatable shaft j when said disks are disengaged. Y

Y 5. A machine of the class described comprising a rotatable shaft adapted to carry a support for porcelain there'oina driving shaft arranged in line with said' driven shaft, means for rotating the latter, a clutch'disk secured to each of said shafts, means for moving'said last named shaft axially whereby said clutch f disks are brought into engagement, a brake normally engaging the dislc on said first Y named shaft when vsaid disks are separated,

- and means' for moving said brake out of engagement with said disk when said disks'are brought into engagement.

In testimony whereof I hereunto affix my signature.

JOHN R. kMITCHEIL. 

